Home / 780,780.22-1,077,469.27-436,612.21

Finding the Fourth Proportional to 780,780.22, 1,077,469.27 and 436,612.21

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Solution

The fourth proportional to 780,780.22, 1,077,469.27 and 436,612.21 is: 602,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,780.22 : 1,077,469.27 = 436,612.21 : x
  2. Step 2: Convert to fraction form
    780,780.22/1,077,469.27 = 436,612.21/x
  3. Step 3: Cross multiply
    780,780.22x = 1,077,469.27 × 436,612.21
  4. Step 4: Simplify right side
    780,780.22x = 470,436,235,396.58
  5. Step 5: Solve for x
    x = 470,436,235,396.58/780,780.22
  6. Step 6: Final answer
    x = 602,520.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.